Method for producing solid lipid microspheres having a narrow size distribution
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United States of America Patent
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Oct 5, 1993
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Aug 2, 1991
filing date -
Aug 5, 1991
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Abstract
Solid lipid microspheres having a diameter lower than one micron and a polydispersion of between 0.06 and 0.90 obtained by adding to a molten lipid substance a mixture consisting of water, a surfactant and possibly a co-surfactant, dispersing in water the obtained microemulsion, washing with water the dispersion microspheres by diafiltration and lyophilizing.
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